The Windows Reseller Option Kit (ROK) is a software distribution option that enables you to order tuned and certified Microsoft server software separately from OEM servers so that you have more flexibility to deliver customized server solutions. Each ROK is another server option that you can specify when you order servers. You can install the appropriate ROK on your customer's preferred server model. Customers still enjoy the same great performance of OEM-tuned drivers for Microsoft Software, because each ROK is carefully matched to a specific server brand.

By purchasing your Windows ROK from Lenovo, you have a convenient one-stop-shop for clients, servers, and operating systems. You can enjoy a fast, easy method to purchase affordable servers and options with a Microsoft Windows compatible operating system. Lenovo and Microsoft work together to ensure that ThinkServers and Windows Server deliver optimal performance and work together seamlessly.

Technical Specifications

Specifications are provided by the manufacturer. Refer to the manufacturer for an explanation
of the print speed and other ratings.

Rated 5 out of 5 by hanyonglim Works great. Thoughts about Server 2012 R2:The deduplication in 2012 R2 was really helpful, especially on a file server. On one of the file server volumes, there was a a lot of savings in data from deduplication, from 480GB to around 240GB of disk used.The Hyper-V 3.0 in 2012 R2 seems much more stable than the Hyper-V 2.0 in 2008 R2, much more feature packed too, e.g. replication and other high availability features. June 22, 2016

Rated 5 out of 5 by Carl Holzhauer Works very well; I like the choice to include every option in standard that's in the higher versions, and I like the fact that the RAM limit has been increased. February 8, 2016

Rated 5 out of 5 by DLOPEZ MISM Best Microsoft Server OS ever! It just keeps getting better every year!Thanks Microsoft for the amazing Server OS and resources! December 31, 2015